A disclosed imaging apparatus includes a wide-angle optical system having at least chromatic aberration of magnification; an imaging device including color filters and configured to receive an optical image from the optical system via the color filters and to convert the optical image into image data; and a chromatic aberration of magnification correcting unit configured to convert coordinates of the image data and thereby correct chromatic aberration of magnification of the image data. The chromatic aberration of magnification correcting unit is configured to convert the image data into different-wavelength image data having wavelength bands different from original wavelength bands of the color filters before correcting the chromatic aberration of magnification.